Improvement in lubricating compounds



UNITED STATES PATENT OE IoE PETER SWEENEY, OF NEW YORK, N. Y., ASSIGNOR TO BENJAMIN COLLINS,

OF SAME PLACE.

IMPROVEMENT IN LUBRICATING COMPOUNDS.

Specification forming part of Letters Patent No. 191,490, dated May 29, 1877; application filed November 25, 1876.

To all whom it may concern;

Be it known that 1, PETER SWEENEY, of the city, county, and State of New York, have invented a new and Improved Lubricating Compound, which invention is fully set forth in the following specification.

This invention relates to a lubricating compound which is made of graphite and collodion.

In carrying out my invention I take graphite, eight pounds; pyroxyline, one pound. The pyroxyline is dissolved in about one gallon of ether and alcohol, or any other equivalent solvent, and the solution thus obtained I place, together with the graphite, into a vessel, which is closed air-tight, and which contains an agitator of any suitable construction, for the purpose of stirring the above-named ingredients together until a homogeneous mass is produced. During this operation it is essential that the atmospheric air shall be excluded. After the ingredients have been stirred together for a sufficient length of time, which must be determined by experience, I remove the mass from the mixingvessel, and subject the same to pressure between pads of felt, sponge, or other absorbent material, in suitable press-boxes, from which the atmospheric air is excluded. By this pressing opmay be pressed into cakes of suitable thickness, which are afterward cut up in pieces of the required shape.

What I claim as new, and desire to secure by Letters Patent, is-

A lubricating compound made of graphite and collodion mixed together, substantially in the manner and about in the proportion herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal this 22d day of November, 1876.

PETER SWEENEY. n s.]

Witnesses:

W. HAUFF, E. F. KASTENHUBER. 

